Instrukcja obsługi Texas Instruments SN74CB3Q3257PWR

Przeczytaj poniżej 📖 instrukcję obsługi w języku polskim dla Texas Instruments SN74CB3Q3257PWR (28 stron) w kategorii nieskategoryzowany. Ta instrukcja była pomocna dla 14 osób i została oceniona przez 6 użytkowników na średnio 4.7 gwiazdek

1B11A

OE

1B2

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4B14A

4B2

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SW

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-criticalapplications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

SN74CB3Q3257

SCDS135D– SEPTEMBER2003 – REVISEDJULY2018

SN74CB3Q3257 4-Bit 1-of-2 FET Multiplexer/Demultiplexer

2.5-V/3.3-V Low-Voltage High-BandwidthBus Switch

1

(1)For additional information regarding the performance

characteristics of the CB3Q family, refer to the TI application

report, ,CBT-C, CB3T, andCB3Q Signal-Switch Families

SCDA008.

1 Features

1

•High-Bandwidth Data Path

(up to500 MHz)

•5-VTolerant I/Os With DevicePowered Upor

Powered Down

•Lowand FlatON-State Resistance(ron)

Characteristics OverOperating Range

(ron= 4Typical)Ω

•Rail-to-Rail Switchingon DataI/O Ports

–0- to5-V SwitchingWith 3.3-VVCC

–0- to3.3-V SwitchingWith 2.5-VVCC

•BidirectionalData FlowWith Near-Zero

Propagation Delay

•Low Inputand OutputCapacitance Minimizes

Loading and Signal Distortion

(Cio(OFF) = 3.5pF Typical)

•FastSwitching Frequency(fOE =20 MHz

Maximum)

•Data and Control InputsProvide Undershoot

Clamp Diodes

•Low PowerConsumption

(ICC = 0.7mA Typical)

• VCC Operating Range From 2.3V to3.6 V

•Data I/OsSupport 0-to 5-VSignaling Levels

(0.8V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V)

•Control InputsCan BeDriven byTTL or

5-V/3.3-V CMOS Outputs

• Io Supports Partial-Power-Down Mode Operation

•Latch-UpPerformance Exceeds100 mAPer

JESD 78,Class II

•ESD PerformanceTested PerJESD 22

–2000-V Human Body Model

(A114-B, ClassII)

–1000-V Charged-DeviceModel (C101)

•Supports BothDigital andAnalog Applications:

USB Interface,Dierential SignalInterface,

Bus Isolation,Low-Distortion SignalGating(1)

2 Applications

•IP Phones:Wired andWireless

•Optical Modules

•Optical Networking:Video OverFiber andEPON

•Private BranchExchange (PBX)

•WiMAX and WirelessInfrastructureEquipment

3 Description

The SN74CB3Q3257 deviceis a high-bandwidth FET

bus switchutilizing acharge pumpto elevate the gate

voltage of the pass transistor, providing a low and at

ON-state resistance(ron).

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)

SN74CB3Q3257DGVTVSOP (16)3.60mm × 4.40mm

SN74CB3Q3257DBQSSOP (16)4.90mm × 3.90mm

SN74CB3Q3257PWTSSOP(16)5.00 mm× 4.40mm

SN74CB3Q3257RGYVQFN (16)4.00mm ×3.50mm

(1)For allavailablepackages,see the orderable addendum at

the end of the data sheet.

Logic Diagram(Positive Logic)

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